Current Data Holdings

As of Sept 2016, we have a total of over 3,350,000 records, of around 22,450 taxa (i.e. species, subspecies, genera etc). The tables below give a breakdown of our data holdings. In addition, we make use of 224,000 records from the NBN Gateway.

Taxonomic Breakdown of SEWBReC data holdings

Taxonomic Group

No. of Records

No. of Taxa Recorded

Records per Taxon (based on UK total taxa)

Amphibians

7,323

12

113

Arachnids

12,933

570

6

Birds

674,736

506

393

Bryophytes

136,910

849

100

Crustaceans

9,270

339

2

Fish

6,009

130

7

Fungi, Lichens & Algae

56,099

3,594

2

Insects

948,936

10,176

40

Mammals

47,917

107

123

Marine Invertebrate

7,145

512

1

Mollusca

18,648

437

8

Other Invertebrates

3,540

166

6

Others

302

36

1

Reptiles

5,223

18

44

Vascular Plant

944,521

3,659

95

Temporal Breakdown of SEWBReC data holdings

Date Range

Number of Records

<1980

252,794

1980 - 1984

128,959

1985 - 1989

232,346

1990 - 1994

236,669

1995 - 1999

328,617

2000 - 2004

495,904

2005 - 2009

716,799

2010 - 2014

775,618

2015 onwards

184,883

Download this spreadsheet for metadata relating to the spatial datasets that SEWBReC holds and disseminates.